Over the last few years, hotel companies have made a determined effort to deal with the impact their business activities have on the environment and communities. Both, international hospitality chains and small hotel businesses, recognise the tangible benefits in being proactive in mitigating environmental and societal impacts including real efficiency gains and an enhanced corporate reputation. And in the hospitality industry, as in all industries, a good reputation cannot be bought, it must be earned. Along the same lines as previous editions of the Hotel Yearbook, the 2020 Sustainable Hospitality edition gathers the thoughts and research from a wide-ranging group of senior executives, analysts, consultants and opinion leaders from all over the world to ask, "What lies ahead for the global hotel industry in light of the ever-changing and challenging environmental, societal and economic dimensions?". From decentralized energy production alternatives to on-site waste management technologies; from use of passive solar design to impacts of green technology usage; from sustainable food systems to the evolving nature of corporate responsibility strategies; successful hospitality requires an in-depth understanding of the issues facing our industry - an essential read to all involved closely or remotely in the hospitality industry.